tutorial: start working on an FBO example.

.gitignore

@@ -72,5 +72,6 @@ test/xolotl/xolotl
 tools/make-font
 tutorial/01_triangle
 tutorial/02_cube
+tutorial/08_fbo
 tutorial/11_fractal
 # Our data

build/vs2010/Lol.sln

@@ -86,6 +86,8 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "ToukyDemo", "..\..\games\To
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "BtPhysTest", "..\..\test\BtPhysTest.vcxproj", "{EE203B88-44CF-4859-9D42-7A1F43FECB52}"
 EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "08_fbo", "..\..\tutorial\08_fbo.vcxproj", "{BCEE0132-8E24-49BE-AFEB-96DAD14396BA}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|PS3 = Debug|PS3
@@ -354,6 +356,24 @@ Global
 		{EE203B88-44CF-4859-9D42-7A1F43FECB52}.Release|Xbox 360.ActiveCfg = Release|Xbox 360
 		{EE203B88-44CF-4859-9D42-7A1F43FECB52}.Release|Xbox 360.Build.0 = Release|Xbox 360
 		{EE203B88-44CF-4859-9D42-7A1F43FECB52}.Release|Xbox 360.Deploy.0 = Release|Xbox 360
+		{BCEE0132-8E24-49BE-AFEB-96DAD14396BA}.Debug|PS3.ActiveCfg = Debug|PS3
+		{BCEE0132-8E24-49BE-AFEB-96DAD14396BA}.Debug|PS3.Build.0 = Debug|PS3
+		{BCEE0132-8E24-49BE-AFEB-96DAD14396BA}.Debug|Win32.ActiveCfg = Debug|Win32
+		{BCEE0132-8E24-49BE-AFEB-96DAD14396BA}.Debug|Win32.Build.0 = Debug|Win32
+		{BCEE0132-8E24-49BE-AFEB-96DAD14396BA}.Debug|x64.ActiveCfg = Debug|x64
+		{BCEE0132-8E24-49BE-AFEB-96DAD14396BA}.Debug|x64.Build.0 = Debug|x64
+		{BCEE0132-8E24-49BE-AFEB-96DAD14396BA}.Debug|Xbox 360.ActiveCfg = Debug|Xbox 360
+		{BCEE0132-8E24-49BE-AFEB-96DAD14396BA}.Debug|Xbox 360.Build.0 = Debug|Xbox 360
+		{BCEE0132-8E24-49BE-AFEB-96DAD14396BA}.Debug|Xbox 360.Deploy.0 = Debug|Xbox 360
+		{BCEE0132-8E24-49BE-AFEB-96DAD14396BA}.Release|PS3.ActiveCfg = Release|PS3
+		{BCEE0132-8E24-49BE-AFEB-96DAD14396BA}.Release|PS3.Build.0 = Release|PS3
+		{BCEE0132-8E24-49BE-AFEB-96DAD14396BA}.Release|Win32.ActiveCfg = Release|Win32
+		{BCEE0132-8E24-49BE-AFEB-96DAD14396BA}.Release|Win32.Build.0 = Release|Win32
+		{BCEE0132-8E24-49BE-AFEB-96DAD14396BA}.Release|x64.ActiveCfg = Release|x64
+		{BCEE0132-8E24-49BE-AFEB-96DAD14396BA}.Release|x64.Build.0 = Release|x64
+		{BCEE0132-8E24-49BE-AFEB-96DAD14396BA}.Release|Xbox 360.ActiveCfg = Release|Xbox 360
+		{BCEE0132-8E24-49BE-AFEB-96DAD14396BA}.Release|Xbox 360.Build.0 = Release|Xbox 360
+		{BCEE0132-8E24-49BE-AFEB-96DAD14396BA}.Release|Xbox 360.Deploy.0 = Release|Xbox 360
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -375,6 +395,7 @@ Global
 		{B92ABADC-45BE-4CC5-B724-9426053123A1} = {E74CF679-CA2A-47E9-B1F4-3779D6AC6B04}
 		{7B083DA2-FE08-4F6D-BFDD-195D5C2783EB} = {E74CF679-CA2A-47E9-B1F4-3779D6AC6B04}
 		{6BF81B39-EDC2-4227-9992-C2D8ABEA95AF} = {E74CF679-CA2A-47E9-B1F4-3779D6AC6B04}
+		{BCEE0132-8E24-49BE-AFEB-96DAD14396BA} = {E74CF679-CA2A-47E9-B1F4-3779D6AC6B04}
 		{32F3F8CF-D22E-45E4-BEB8-AD909E8C5515} = {33704AA4-F2B5-4138-A40D-E3E77F89ED46}
 		{EE203B88-44CF-4859-9D42-7A5F40FECB52} = {8C77EAA8-1077-4EF7-AE53-97C6C60A3601}
 		{B357514A-7881-422D-8358-161B689E7620} = {3D341D8A-E400-4B1D-BC05-B5C35487D9B5}

tutorial/08_fbo.cpp

@@ -0,0 +1,109 @@
+//
+// Lol Engine - Framebuffer Object tutorial
+//
+// Copyright: (c) 2012 Sam Hocevar <sam@hocevar.net>
+//   This program is free software; you can redistribute it and/or
+//   modify it under the terms of the Do What The Fuck You Want To
+//   Public License, Version 2, as published by Sam Hocevar. See
+//   http://sam.zoy.org/projects/COPYING.WTFPL for more details.
+//
+
+#if defined HAVE_CONFIG_H
+#   include "config.h"
+#endif
+
+#include "core.h"
+#include "loldebug.h"
+
+using namespace std;
+using namespace lol;
+
+#if USE_SDL && defined __APPLE__
+#   include <SDL_main.h>
+#endif
+
+#if defined _WIN32
+#   undef main /* FIXME: still needed? */
+#   include <direct.h>
+#endif
+
+extern char const *lolfx_08_fbo;
+
+class FBO : public WorldEntity
+{
+public:
+    FBO()
+    {
+        m_vertices << vec2( 0.0,  0.8);
+        m_vertices << vec2(-0.8, -0.8);
+        m_vertices << vec2( 0.8, -0.8);
+        m_ready = false;
+    }
+
+    virtual void TickDraw(float seconds)
+    {
+        WorldEntity::TickDraw(seconds);
+
+        if (!m_ready)
+        {
+            m_shader = Shader::Create(lolfx_08_fbo);
+            m_coord = m_shader->GetAttribLocation("in_Position", VertexUsage::Position, 0);
+
+            m_vdecl = new VertexDeclaration(VertexStream<vec2>(VertexUsage::Position));
+
+            m_vbo = new VertexBuffer(m_vertices.Bytes());
+            void *vertices = m_vbo->Lock(0, 0);
+            memcpy(vertices, &m_vertices[0], m_vertices.Bytes());
+            m_vbo->Unlock();
+
+            m_fbo = new FrameBuffer(Video::GetSize());
+
+            m_ready = true;
+
+            /* FIXME: this object never cleans up */
+        }
+
+        m_fbo->Bind();
+        m_shader->Bind();
+        m_vdecl->SetStream(m_vbo, m_coord);
+        m_vdecl->Bind();
+        m_vdecl->DrawElements(MeshPrimitive::Triangles, 0, 1);
+        m_vdecl->Unbind();
+        m_shader->Unbind();
+        m_fbo->Unbind();
+
+        m_shader->Bind();
+        m_vdecl->SetStream(m_vbo, m_coord);
+        m_vdecl->Bind();
+        m_vdecl->DrawElements(MeshPrimitive::Triangles, 0, 1);
+        m_vdecl->Unbind();
+        m_shader->Unbind();
+    }
+
+private:
+    Array<vec2> m_vertices;
+    Shader *m_shader;
+    ShaderAttrib m_coord;
+    VertexDeclaration *m_vdecl;
+    VertexBuffer *m_vbo;
+    FrameBuffer *m_fbo;
+    bool m_ready;
+};
+
+int main(int argc, char **argv)
+{
+    Application app("Tutorial 08: Framebuffer Object", ivec2(640, 480), 60.0f);
+
+#if defined _MSC_VER && !defined _XBOX
+    _chdir("..");
+#elif defined _WIN32 && !defined _XBOX
+    _chdir("../..");
+#endif
+
+    new DebugFps(5, 5);
+    new FBO();
+
+    app.Run();
+    return EXIT_SUCCESS;
+}
+

tutorial/08_fbo.lolfx

@@ -0,0 +1,36 @@
+-- GLSL.Vert --
+
+#version 120
+
+void main()
+{
+    gl_Position = gl_Vertex;
+    gl_TexCoord[0] = gl_MultiTexCoord0;
+}
+
+-- GLSL.Frag --
+
+#version 120
+
+uniform sampler2D texture;
+
+void main(void)
+{
+    gl_FragColor = vec4(texture2D(texture, gl_TexCoord[0].xy).xyz, 1.0);
+}
+
+-- HLSL.Vert --
+
+void main(float2 in_Position : POSITION,
+          out float4 out_Position : POSITION)
+{
+    out_Position = float4(in_Position, 0.0, 1.0);
+}
+
+-- HLSL.Frag --
+
+void main(out float4 out_FragColor : COLOR)
+{
+    out_FragColor = float4(0.7, 0.2, 0.5, 1.0);
+}
+

tutorial/08_fbo.vcxproj

@@ -0,0 +1,68 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|PS3">
+      <Configuration>Debug</Configuration>
+      <Platform>PS3</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|Xbox 360">
+      <Configuration>Debug</Configuration>
+      <Platform>Xbox 360</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|PS3">
+      <Configuration>Release</Configuration>
+      <Platform>PS3</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Xbox 360">
+      <Configuration>Release</Configuration>
+      <Platform>Xbox 360</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="08_fbo.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <LolFxCompile Include="08_fbo.lolfx" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="$(SolutionDir)\..\..\src\lolcore.vcxproj">
+      <Project>{9e62f2fe-3408-4eae-8238-fd84238ceeda}</Project>
+    </ProjectReference>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{BCEE0132-8E24-49BE-AFEB-96DAD14396BA}</ProjectGuid>
+    <ConfigurationType>Application</ConfigurationType>
+    <Keyword>Win32Proj</Keyword>
+  </PropertyGroup>
+  <Import Project="$(SolutionDir)\Lol.Core.Config.props" />
+  <ImportGroup Label="ExtensionSettings">
+    <Import Project="$(SolutionDir)\Lol.Fx.props" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="$(SolutionDir)\Lol.Core.Vars.props" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <Import Project="$(SolutionDir)\Lol.Core.Rules.props" />
+  <ItemDefinitionGroup />
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+    <Import Project="$(SolutionDir)\Lol.Fx.targets" />
+  </ImportGroup>
+</Project>

tutorial/Makefile.am

@@ -14,7 +14,7 @@ SUFFIXES = .lolfx
 .lolfx.o:
 	$(LOLFX_BUILD)
 
-noinst_PROGRAMS = 01_triangle 02_cube 11_fractal
+noinst_PROGRAMS = 01_triangle 02_cube 08_fbo 11_fractal
 
 01_triangle_SOURCES = 01_triangle.cpp 01_triangle.lolfx
 01_triangle_CPPFLAGS = @LOL_CFLAGS@ @PIPI_CFLAGS@
@@ -26,6 +26,11 @@ noinst_PROGRAMS = 01_triangle 02_cube 11_fractal
 02_cube_LDFLAGS = $(top_builddir)/src/liblol.a @LOL_LIBS@ @PIPI_LIBS@
 02_cube_DEPENDENCIES = $(top_builddir)/src/liblol.a
 
+08_fbo_SOURCES = 08_fbo.cpp 08_fbo.lolfx
+08_fbo_CPPFLAGS = @LOL_CFLAGS@ @PIPI_CFLAGS@
+08_fbo_LDFLAGS = $(top_builddir)/src/liblol.a @LOL_LIBS@ @PIPI_LIBS@
+08_fbo_DEPENDENCIES = $(top_builddir)/src/liblol.a
+
 11_fractal_SOURCES = 11_fractal.cpp 11_fractal.lolfx
 11_fractal_CPPFLAGS = @LOL_CFLAGS@ @PIPI_CFLAGS@
 11_fractal_LDFLAGS = $(top_builddir)/src/liblol.a @LOL_LIBS@ @PIPI_LIBS@